<?php

/**
 * Smarty Internal Plugin Debug
 *
 * Class to collect data for the Smarty Debugging Consol
 *
 * @package Smarty
 * @subpackage Debug
 * @author Uwe Tews
 */

/**
 * Smarty Internal Plugin Debug Class
 */
class Smarty_Internal_Debug extends Smarty_Internal_Data {
	// template data
	static $template_data = array ();
	
	/**
	 * Start logging of compile time
	 */
	public static function start_compile($template) {
		$key = self::get_key ( $template );
		self::$template_data [$key] ['start_time'] = microtime ( true );
	}
	
	/**
	 * End logging of compile time
	 */
	public static function end_compile($template) {
		$key = self::get_key ( $template );
		self::$template_data [$key] ['compile_time'] += microtime ( true ) - self::$template_data [$key] ['start_time'];
	}
	
	/**
	 * Start logging of render time
	 */
	public static function start_render($template) {
		$key = self::get_key ( $template );
		self::$template_data [$key] ['start_time'] = microtime ( true );
	}
	
	/**
	 * End logging of compile time
	 */
	public static function end_render($template) {
		$key = self::get_key ( $template );
		self::$template_data [$key] ['render_time'] += microtime ( true ) - self::$template_data [$key] ['start_time'];
	}
	
	/**
	 * Start logging of cache time
	 */
	public static function start_cache($template) {
		$key = self::get_key ( $template );
		self::$template_data [$key] ['start_time'] = microtime ( true );
	}
	
	/**
	 * End logging of cache time
	 */
	public static function end_cache($template) {
		$key = self::get_key ( $template );
		self::$template_data [$key] ['cache_time'] += microtime ( true ) - self::$template_data [$key] ['start_time'];
	}
	/**
	 * Opens a window for the Smarty Debugging Consol and display the data
	 */
	public static function display_debug($obj) {
		// prepare information of assigned variables
		$ptr = self::get_debug_vars ( $obj );
		if ($obj instanceof Smarty) {
			$smarty = clone $obj;
		} else {
			$smarty = clone $obj->smarty;
		}
		$_assigned_vars = $ptr->tpl_vars;
		ksort ( $_assigned_vars );
		$_config_vars = $ptr->config_vars;
		ksort ( $_config_vars );
		$smarty->left_delimiter = '{';
		$smarty->right_delimiter = '}';
		$smarty->registered_filters = array ();
		$smarty->autoload_filters = array ();
		$smarty->default_modifiers = array ();
		$_template = new Smarty_Internal_Template ( $smarty->debug_tpl, $smarty );
		$_template->caching = false;
		$_template->force_compile = false;
		$_template->disableSecurity ();
		$_template->cache_id = null;
		$_template->compile_id = null;
		if ($obj instanceof Smarty_Internal_Template) {
			$_template->assign ( 'template_name', $obj->resource_type . ':' . $obj->resource_name );
		}
		if ($obj instanceof Smarty) {
			$_template->assign ( 'template_data', self::$template_data );
		} else {
			$_template->assign ( 'template_data', null );
		}
		$_template->assign ( 'assigned_vars', $_assigned_vars );
		$_template->assign ( 'config_vars', $_config_vars );
		$_template->assign ( 'execution_time', microtime ( true ) - $smarty->start_time );
		echo $_template->getRenderedTemplate ();
	}
	/*
	 * Recursively gets variables from all template/data scopes
	 */
	public static function get_debug_vars($obj) {
		$config_vars = $obj->config_vars;
		$tpl_vars = array ();
		foreach ( $obj->tpl_vars as $key => $var ) {
			$tpl_vars [$key] = clone $var;
			if ($obj instanceof Smarty_Internal_Template) {
				$tpl_vars [$key]->scope = $obj->resource_type . ':' . $obj->resource_name;
			} elseif ($obj instanceof Smarty_Data) {
				$tpl_vars [$key]->scope = 'Data object';
			} else {
				$tpl_vars [$key]->scope = 'Smarty root';
			}
		}
		
		if (isset ( $obj->parent )) {
			$parent = self::get_debug_vars ( $obj->parent );
			$tpl_vars = array_merge ( $parent->tpl_vars, $tpl_vars );
			$config_vars = array_merge ( $parent->config_vars, $config_vars );
		} else {
			foreach ( Smarty::$global_tpl_vars as $name => $var ) {
				if (! array_key_exists ( $name, $tpl_vars )) {
					$clone = clone $var;
					$clone->scope = 'Global';
					$tpl_vars [$name] = $clone;
				}
			}
		}
		return ( object ) array ('tpl_vars' => $tpl_vars, 'config_vars' => $config_vars );
	}
	
	/**
	 * get_key
	 */
	static function get_key($template) {
		// calculate Uid if not already done
		if ($template->templateUid == '') {
			$template->getTemplateFilepath ();
		}
		$key = $template->templateUid;
		if (isset ( self::$template_data [$key] )) {
			return $key;
		} else {
			self::$template_data [$key] ['name'] = $template->getTemplateFilepath ();
			self::$template_data [$key] ['compile_time'] = 0;
			self::$template_data [$key] ['render_time'] = 0;
			self::$template_data [$key] ['cache_time'] = 0;
			return $key;
		}
	}
}

?>